ON SALE FOR A LIMITED TIME!! NOW $499.95 with FREE SHIPPING to the lower 48! For 8 years now, our STEALTH aluminum cylinder heads have been hands down the best bang for the buck you can find! Capable of an easy 550 horsepower (when used with our 500+ inch stroker kits) these have the potential to make 650-700+ horsepower with port work and upgrades.

ON SALE FOR A LIMITED TIME!! NOW $449.95 with FREE SHIPPING to the lower 48! We are currently offering our Stealth cylinder heads as BARE CASTINGS. These include the bare machined casting only with valve guides and seats installed. Does not include valves, seals, springs, locks or retainers. Includes one head per part, order quantity of two for a pair. AVAILABLE ONLY WHILE SUPPLIES LAST.

Shown here is our Comp Cams 10 degree "Super Lock" Steel Retainers. These are a huge, extremely beefy valve retainer which is designed to fit our Comp "Super Locks," which can be found on our Valve Locks page. This 10 degree lock & retainer system has a wider angle of interference than a standard 7 degree lock. These are fully machined from 4140 Chrome Moly and finished in black oxide. Comp recommends these for any cams over .460" lift (basically anything other than bone stock) but we feel they're absolutely necessary above .510" lift. We highly recommend upgrading to these for extra insurance, and it's required if you will be running a cam over .510" lift. These are supplied in a set of 16, enough to do one complete engine. Since they're Comp, you can be assured of two things: They're 100% made in the USA, and the quality is second to none.

These Comp Cams Titanium retainers offer a huge weight savings over standard steel retainers. Made from 6AL4V alloy, (the same stuff used on the F-117 Stealth fighter,) these weigh in at 19 grams, verses 33 grams for the steel version, a savings of over 40%! On high reving engines with high lift cams, the weight savings makes a huge difference in increasing the reliability and lifespan of valve train components. These are considered mandatory for our full race roller cams (such as our 145-1705 race roller cam with our 145-1009 springs,) and can be used as on optional upgrade with any of our Hydraulic Flat tappet or Hydraulic roller cams using our 200-1058 valve springs. For matching valve locks (for 11/32" valve stems,) use our 145-1002 valve locks. WILL NOT WORK with our Street Mechanical Rollers using our 145-1010 valve springs.

Shown here is our Comp Cams 10 degree "Super Locks." These are a huge, extremely beefy valve lock which has a wider angle of interference than a standard 7 degree lock. These are fully machined (not stamped) from a super tough fatigue resistant alloy. Comp recommends these for any cams over .460" lift (basically anything other than bone stock) but we feel they're absolutely necessary above .510" lift. These fit 11/32 valve stems, which can be found on most aftermarket aluminum heads (such as our Stealth heads or Edelbrock RPM's,) and they work great with our Comp "Super Lock" retainers, part number 145-1003 or 145-1006, which can be found on our Valve Retainers page. We highly recommend upgrading to these for extra insurance, and it's required if you will be running a cam over .510" lift. These are supplied in a set of 32, enough to do one complete engine. Since they're Comp, you can be assured of two things: They're 100% made in the USA, and the quality is second to none.

ALL TEFLON type seals, sometimes known as "PC" seals for Perfect Circle, one of the first companies to start selling them. These actually fit positively over the valve guide and "wipe" the valve stems as they open and close. These are an UPGRADED type seal which will fit our Stealth heads. They also feature a smaller diameter which is necessary when running dual valve springs.

Our high temp premium "white" head gaskets are made for us by the same large US manufacturing company that supplies them directly to Edelbrock and other well known brand names. We just happen to sell them at a fraction of the cost. These fit all big blocks, all years. They are sold individually (one single gasket,) so be sure to order two if you need a set. Compressed thickness on these head gaskets is .051" They are treated with a coating, so no chemicals or sealers are necessary for installation. Just clean your deck surfaces, bolt 'em on and go. They work great with factory iron heads or our aluminum Stealth heads. Recommended up to 12:1 compression.

Our new teflon coated "Black" head gaskets are tested at up to 12:1 compression and are a great choice for budget builds. These fit all big blocks, all years. They are sold individually (one single gasket,) so be sure to order two if you need a set. Compressed thickness on these head gaskets is .051" They are treated with a coating, so no chemicals or sealers are necessary for installation. Just clean your deck surfaces, bolt 'em on and go. They work great with factory iron heads or our aluminum Stealth heads.

For those who want strength and performance, but are still on a tight budget, we've sourced our own set of head bolts as well. Priced at a fraction of the cost of the name brand bolts, these are custom made for us by one of the largest bolt manufacturers in the USA. They feature a reduced diameter 12 point heads for easy access in applications that have countersunk head bolts (such as our Stealth aluminum heads or Edelbrock Performer RPM heads), but they also work great with factory iron heads. Rated at 170,000 PSI, they are far stronger that the factory head bolts, or even a standard type grade 8 bolt. We even include .100" thick head washers with them. One set contains enough bolts for two heads (one complete engine.) A great 100% USA made choice, strong enough for 98% of applications, at a price that won't break the bank!

Our ARP 12 point black oxide head bolts & washers sets are made from super strong 180,000 PSI bolts. That's a full 15% stronger than even grade 8 bolts. They work great for high horsepower and/or highly stressed applications with our new STEALTH aluminum cylinder heads, factory cast iron heads, Edelbrock Performer RPM aluminum heads, or any other heads that use stock length bolts.

This valley pan is the same as our single plain models, except it features a clearance well which will clear the exhaust crossover found in many aftermarket dual plane intakes. Fits Edelbrock's Performer RPM manifold, but not the regular Performer.

This is a labor charge for us to remove and replace valve locks and retainers only, such as when changing from a 7 degree to a 10 degree setup. This basic head labor charge does NOT include replacing valve springs and seals, please select our extended head labor charge if you need valve springs and seals replaced also. This labor charge must be selected in the same order as the cylinder heads, along with the new valve locks and retainers you want upgraded. Does not include custom shimming each spring to a specific installed height.

This is a labor charge for us to remove and replace valve springs, seals, locks and retainers. This labor charge must be selected in the same order as the cylinder heads, along with the new valve locks, retainers, seals and springs you want upgraded. Does not include custom shimming each spring to a specific installed height.

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